def test_average_speed_per_hour_returns_imperial_result(self):
# Arrange
unit_of_measurement = 'Bogus'
start = datetime.now(pytz.utc)
finish = start + timedelta(seconds=15)
# Act
with self.assertRaises(ValueError) as context:
compute.average_speed_per_hour(start, finish, 50,
unit_of_measurement)
# Assert
self.assertEqual(context.exception.message,
"Unknown unit of measurement 'Bogus'")
def test_average_speed_per_hour_returns_none_when_no_finish(self):
# Arrange
start = datetime.now(pytz.utc)
# Act
avg_sph = compute.average_speed_per_hour(start, None, 10)
# Assert
self.assertEqual(None, avg_sph)
def test_average_speed_per_hour_returns_imperial_result(self):
# Arrange
unit_of_measurement = settings.IMPERIAL
start = datetime.now(pytz.utc)
finish = start + timedelta(seconds=15)
# Act
avg_sph = compute.average_speed_per_hour(start, finish, 50,
unit_of_measurement)
# Assert
self.assertEqual(6.8182, avg_sph)
